阅读说明：本技术 气田地面建设集气站、上下古合采集气站及建设方法 (Gas field ground construction gas collecting station, upper and lower ancient combined collection gas collecting station and construction method ) 是由 李娜 薛岗 王登海 张凤喜 刘银春 杨光 郑欣 胡建国 陈晓刚 杨家茂 于 2020-07-01 设计创作，主要内容包括：本发明气田地面建设集气站、上下古合采集气站及建设方法,属于石油天然气领域,应用于短期气井中,本发明提供的一种气田地面建设集气站,包括：用于超压自动放空的进站橇、用于对采气进行加热降压的加热炉区橇、用于进行初步气液分离的集气橇、用于对采气进行脱水的脱水橇和清管区橇,进站橇、加热炉区橇、集气橇和清管区橇分别设置在不同的橇上,进站橇一端与气井连接,进站橇另一端通过加热炉区橇与集气橇连接,集气橇通过脱水橇和清管区橇连接。并解决了短期气井在采集完后,采集设备无法搬运会对设备的利用造成浪费问题。(The invention relates to a gas field ground construction gas gathering station, an upper and lower ancient mining gas gathering station and a construction method, which belong to the field of petroleum and natural gas and are applied to short-term gas wells, and the invention provides the gas field ground construction gas gathering station, which comprises the following components: the station entering sledge is used for overpressure automatic emptying, the heating furnace area sledge is used for heating and depressurizing gas production, the gas collecting sledge is used for performing primary gas-liquid separation, the dehydration sledge is used for dehydrating the gas production, and the pipe cleaning area sledge is used. And the problem that the utilization of the equipment is wasted due to the fact that the collection equipment cannot be transported after the short-term gas well is collected is solved.)

1. A gas field ground construction gathering station, comprising: an entering skid (1) for overpressure automatic emptying, a heating furnace area skid (2) for heating and depressurizing gas production, a gas collecting skid (3) for performing preliminary gas-liquid separation, a dehydration skid (4) and a pipe cleaning area skid (7) for dehydrating gas production, the entering skid (1), the heating furnace area skid (2), the gas collecting skid (3) and the pipe cleaning area skid (7) are respectively arranged on different skids, one end of the entering skid (1) is connected with a gas well, the other end of the entering skid (1) is connected with the gas collecting skid (3) through the heating furnace area skid (2), and the gas collecting skid (3) is connected with the pipe cleaning area skid (7) through the dehydration skid (4).

2. The gas field ground construction gas gathering station as claimed in claim 1, further comprising a tail gas burning sledge (5) and a metering sledge (6), wherein the tail gas burning sledge (5) and the metering sledge (6) are respectively arranged on different sledges, the tail gas burning sledge (5) is connected with the dehydration sledge (4), and the dehydration sledge (4) is connected with the pigging area sledge (7) through the metering sledge (6).

3. The gas field ground construction gas gathering station as claimed in claim 1, further comprising a produced water tank field skid (11), wherein the produced water tank field skid (11) is arranged on the skid, and the produced water tank field skid (11) is connected with the gas gathering skid (3);

still include methanol tank sledge (8), spark arrester district sledge (9) and annotate mellow wine sledge (10), methanol tank sledge (8), spark arrester district sledge (9), annotate mellow wine sledge (10) and methanol tank sledge (8) and set up respectively on different sledges, annotate mellow wine sledge (10) and be located extraction water tank district sledge (11) one side, methanol tank sledge (8) are connected with annotating mellow wine sledge (10), spark arrester district sledge (9) have a plurality ofly, spark arrester district sledge (9) are established respectively by extraction water tank district sledge (11) and notes mellow wine sledge (10).

4. The utility model provides an upper and lower ancient commingled production gas field gathering station which characterized in that includes:

using two gas field surface construction stations of claim 1;

and in the two gas field ground construction gas collecting stations, one gas field ground construction gas collecting station is positioned beside the last ancient gas well and connected with a wellhead beside the last ancient gas well, the other gas field ground construction gas collecting station is positioned beside the next ancient gas well and connected with a wellhead of the next ancient gas well, and the gas outlet end of the gas field ground construction gas collecting station of the last ancient gas well is combined with the gas outlet end of the gas field ground construction gas collecting station of the next ancient gas well and then output to the downstream.

5. The gas field gathering station for the upper and lower ancient combined gas production fields according to claim 4, wherein the gas field ground construction gathering station is provided with a plurality of gas inlet ends, and a plurality of sets of station entering sleds are arranged in the gas field ground construction gathering station, and each set of station entering sleds is used for processing gas well natural gas with different pressures.

6. A construction method for an upper and lower ancient combined gas collecting station is characterized by comprising the following steps:

skid-mounted production of devices for gas production in the upper and lower ancient gas fields;

conveying each skid-mounted device to a gas gathering station site needing to be built;

pipelines are used to connect skid-mounted devices and gas wells.

7. The method for constructing a vertical gas collecting station according to claim 6, wherein each device in the skid-mounted gas production field further comprises:

the devices associated with each other are grouped together on a skid.

8. The method for building a conventional gas collection station according to claim 6, wherein the step of assembling the devices related to each other on a skid specifically comprises:

the method comprises the following steps of skid-mounted production of an ancient landing skid, an ancient gas collection skid, an ancient heating throttling skid, a dehydration skid, an ancient landing skid, an ancient gas collection skid and an ancient heating throttling skid, wherein the ancient landing skid can simultaneously safely vent incoming gas of ancient gas wells with different pressures, and the ancient landing skid can simultaneously vent incoming gas of ancient gas wells with different pressures;

the method for connecting the skid-mounted devices and the gas well by using the pipelines comprises the following specific steps:

connecting a device for treating gas wells with different pressures in an ancient landing skid with the gas wells with different pressures through pipelines, and connecting a plurality of gas outlet ends of the ancient landing skid with the ancient gas collection skid through pipelines, wherein a heating throttling skid with a heating throttling function is arranged between the plurality of gas outlet ends of the ancient landing skid and the ancient gas collection skid;

connecting a device for treating gas wells with different pressures in the ancient entering station sledge with the gas wells with different pressures through pipelines, and connecting a plurality of gas outlet ends of the ancient entering station sledge with the ancient gas collecting sledge through pipelines, wherein a heating throttling sledge with a heating throttling function is arranged between the plurality of gas outlet ends of the ancient entering station sledge and the ancient gas collecting sledge;

the ancient gas collection sleds, the ancient gas collection sleds and the dehydration sleds are connected through pipelines and then transported outside.

9. The method for constructing the upper and lower ancient commingled gas collecting station according to claim 8, wherein the ancient inbound skid with a multi-layer structure is produced in a skid-mounted manner, and each layer of the ancient inbound skid is provided with treatment equipment for treating gas wells with different pressures;

and (3) skid-mounted production of the ancient landing skid with a multilayer structure, wherein each layer of structure of the ancient landing skid is integrated with treatment equipment for treating gas wells with different pressures.

10. The method for constructing an upper and lower ancient gas gathering and collecting station as claimed in claim 8, wherein an ancient tail gas burning skid is installed outside the ancient gas gathering skid, and the ancient gas gathering skid performs gas-liquid separation on the ancient gas;

and an ancient tail gas incineration sledge is arranged outside the ancient gas collection sledge far away from the ancient gas collection sledge, and the ancient gas collection sledge is used for carrying out gas-liquid separation on the ancient gas.

Technical Field

The invention belongs to the field of petroleum and natural gas, is applied to short-term gas wells, and particularly relates to a gas field ground construction gas collecting station, an upper and lower ancient combined collection gas collecting station and a construction method.

Background

The demand of the downstream natural gas market is vigorous, the supply pressure of the Changqing gas field is increased, and the gas yield reaches 387 × 108m in 2018³A is calculated. The gas supply pressure of the Changqing gas field is increased, especially the winter protection is provided, the gas supply demand in the day is far beyond the normal production level, and the national project is related.

According to the secondary accelerated development target of the Changqing oil field branch company and the planning of the group company, the natural gas yield of the Changqing gas area reaches 420 × 108m by 2020³The mode of 'three-dimensional development of upper and lower ancient wells and development of horizontal wells and the same weight' is adopted in part of blocks, and the average yield of the upper ancient vertical wells is about 10000m³Approximately 40000m in the ancient horizontal well³About 20000m for going to ancient straight well³10000m for high-yield well³The single well has multiple types, large production allocation difference, large construction amount of the single well and the gas collecting station, large difficulty and high investment.

In the process of implementing the embodiment of the invention, the inventor finds that at least the following defects exist in the background art:

on the premise that the requirements for construction quality and construction speed are higher and stricter, the standardized construction in the prior art cannot well meet the requirement for rapid construction of a gas field.

Disclosure of Invention

The invention provides a gas collecting station for gas field ground construction, a gas collecting station for upper and lower ancient combined mining and a construction method, and aims to solve the problems and solve the problem that the rapid construction of a gas field cannot be well met under the standardized construction in the prior art on the premise that the requirements on construction quality and construction speed are higher and stricter.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a gas field ground construction gathering station comprising: the station entering sledge is used for overpressure automatic emptying, the heating furnace area sledge is used for heating and depressurizing gas production, the gas collecting sledge is used for performing primary gas-liquid separation, the dehydration sledge is used for dehydrating the gas production, and the pipe cleaning area sledge is used.

Still including tail gas burning sledge and measurement sledge, tail gas burning sledge and measurement sledge set up respectively on different sledges, and tail gas burning sledge is connected with the dehydration sledge, and the dehydration sledge is connected with pigging district sledge through the measurement sledge.

The system also comprises a produced water tank area sledge, wherein the produced water tank area sledge is arranged on the sledge, and the produced water tank area sledge is connected with the gas collection sledge;

still include methanol tank sledge, spark arrester district sledge and annotate the alcohol sledge, the methanol tank sledge, spark arrester district sledge, annotate alcohol sledge and methanol tank sledge and set up respectively on the sledge of difference, annotate the alcohol sledge and be located extraction water tank district sledge one side, the methanol tank sledge is connected with annotating the alcohol sledge, and spark arrester district sledge has a plurality ofly, and spark arrester district sledge is established respectively on extraction water tank district sledge and annotate by the alcohol sledge.

An upper and lower ancient commingled gas production field gathering station, comprising:

constructing a gas collecting station by adopting two gas field grounds;

and in the two gas field ground construction gas collecting stations, one gas field ground construction gas collecting station is positioned beside the last ancient gas well and connected with a wellhead beside the last ancient gas well, the other gas field ground construction gas collecting station is positioned beside the next ancient gas well and connected with a wellhead of the next ancient gas well, and the gas outlet end of the gas field ground construction gas collecting station of the last ancient gas well is combined with the gas outlet end of the gas field ground construction gas collecting station of the next ancient gas well and then output to the downstream.

The gas field ground construction gas gathering station is characterized in that a plurality of gas inlet ends are arranged, a plurality of sets of station entering sleds are arranged in the gas field ground construction gas gathering station, and each set of station entering sleds is used for processing gas well natural gas with different pressures.

A construction method of an upper and lower ancient combined mining gas gathering station comprises the following steps:

skid-mounted production of devices for gas production in the upper and lower ancient gas fields;

conveying each skid-mounted device to a gas gathering station site needing to be built;

pipelines are used to connect skid-mounted devices and gas wells.

Each device in the sled dress metaplasia gas production field is gathered still includes:

the devices associated with each other are grouped together on a skid.

The method for collecting the devices which are mutually associated on the sledge specifically comprises the following steps:

the method comprises the following steps of skid-mounted production of an ancient landing skid, an ancient gas collection skid, an ancient heating throttling skid, a dehydration skid, an ancient landing skid, an ancient gas collection skid and an ancient heating throttling skid, wherein the ancient landing skid can simultaneously safely vent incoming gas of ancient gas wells with different pressures, and the ancient landing skid can simultaneously vent incoming gas of ancient gas wells with different pressures;

the method for connecting the skid-mounted devices and the gas well by using the pipelines comprises the following specific steps:

connecting a device for treating gas wells with different pressures in an ancient landing skid with the gas wells with different pressures through pipelines, and connecting a plurality of gas outlet ends of the ancient landing skid with the ancient gas collection skid through pipelines, wherein a heating throttling skid with a heating throttling function is arranged between the plurality of gas outlet ends of the ancient landing skid and the ancient gas collection skid;

connecting a device for treating gas wells with different pressures in the ancient entering station sledge with the gas wells with different pressures through pipelines, and connecting a plurality of gas outlet ends of the ancient entering station sledge with the ancient gas collecting sledge through pipelines, wherein a heating throttling sledge with a heating throttling function is arranged between the plurality of gas outlet ends of the ancient entering station sledge and the ancient gas collecting sledge;

the ancient gas collection sleds, the ancient gas collection sleds and the dehydration sleds are connected through pipelines and then transported outside.

The method comprises the following steps that an ancient landing skid with a multilayer structure is produced in a skid-mounted mode, and each layer of structure of the ancient landing skid is provided with processing equipment for processing gas wells with different pressures;

and (3) skid-mounted production of the ancient landing skid with a multilayer structure, wherein each layer of structure of the ancient landing skid is integrated with treatment equipment for treating gas wells with different pressures.

Installing an ancient tail gas incineration sledge outside the ancient gas collection sledge, wherein the ancient gas collection sledge is used for carrying out gas-liquid separation on the ancient gas;

and an ancient tail gas incineration sledge is arranged outside the ancient gas collection sledge far away from the ancient gas collection sledge, and the ancient gas collection sledge is used for carrying out gas-liquid separation on the ancient gas.

The skid-mounted construction method has the advantages that an effective standardized construction method is provided for the top-bottom ancient combined mining, the problem that the collection equipment cannot be transported to waste the utilization of the equipment after the short-term gas well is collected is solved, the gas field can be quickly constructed, the gas collection stations of the top-bottom ancient combined mining ground gas collection system can be optimized in the aspect of gas collection technology, all built function skids are unified and standardized, the equipment can be conveniently detached and switched when a fault occurs, the maintenance and recovery can be carried out in time, and the production operation cost and the system operation maintenance cost are reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of a gas station for gas field ground construction according to the present invention;

FIG. 2 is a schematic view showing the connection of the lines in FIG. 1;

fig. 3 is a flow chart in an embodiment of a method for constructing a conventional gas collection station.

Labeled as: 1. entering a station sledge; 2. heating a furnace zone sledge; 3. gas collection sledge; 4. dehydrating sledges; 5. tail gas burning sledge; 6. a metering zone sledge; 7. cleaning a pipe area sledge; 8. a methanol tank sledge; 9. a flame arrestor zone sled; 10. injecting alcohol sledge; 11. and (4) a produced water tank field sledge.

Detailed Description

The gas field ground construction gas gathering station, the upper and lower ancient mining gas gathering stations and the construction method scheme provided by the embodiment of the invention are described in detail through a plurality of specific embodiments.