CN206397498U - A kind of downhole drill gas detection logging test device - Google Patents

A kind of downhole drill gas detection logging test device Download PDF

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Publication number
CN206397498U
CN206397498U CN201720060698.5U CN201720060698U CN206397498U CN 206397498 U CN206397498 U CN 206397498U CN 201720060698 U CN201720060698 U CN 201720060698U CN 206397498 U CN206397498 U CN 206397498U
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China
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module
gas detection
downhole drill
gas
logging test
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CN201720060698.5U
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Inventor
王其敬
刘宗林
姚金志
周建立
周发举
吴刚
王文
袁科杰
崔学广
吴宝影
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Geological Logging Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry
Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
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Geological Logging Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry
Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
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Application filed by Geological Logging Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry, Sinopec Oilfield Service Corp, Sinopec Shengli Petroleum Engineering Corp filed Critical Geological Logging Co Of Triumph Petroleum Works Co Ltd Of China Petrochemical Industry
Priority to CN201720060698.5U priority Critical patent/CN206397498U/en
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Abstract

The utility model provides a kind of downhole drill gas detection logging test device, including hydraulic module, gas detection module, control module and mud pulse generator, pass through the movement of piston in the hydraulic module, annular space drilling fluid is set to flow into the hydraulic module, the content of methane gas in gas detection module measurement annular space drilling fluid, and by the measured value, determine the concentration of the methane gas in stratum, and by gas concentration data transfer to the control module, the control module handles the data that the gas detection module is transmitted, and the data for uploading to ground system will be needed to be sent to the mud pulse generator, the mud pulse generator will need to upload to the data shift signal of ground system into mud pulse signal, and it is transferred to ground system, ground system obtains uploading data after mud pulse signal is understood.The downhole drill gas detection logging test device can in real time, canbe used on line mine gas parameter detecting, lifted test result accuracy.

Description

A kind of downhole drill gas detection logging test device
Technical field
The utility model is related to oil-gas exploration and development field, especially a kind of downhole drill gas detection logging test device.
Background technology
Traditional gas logging technology passes through gas (including methane, the carbon dioxide collected in the drilling fluid for returning to ground With the mixture such as hydrogen sulfide), its material composition is measured, ground-to-ground layer is evaluated indirectly.But, drilling fluid is returned from purpose stratum Returning to ground needs by longer annular space pipeline (as drilling depth is different, length of pipe is different, generally up to several kms) Flowing, information delay is serious, it is impossible to reflect relevant information at downhole drill bit in real time;Meanwhile, in drilling fluid through returning to ground on annular space In the flow process in face, with drilling fluid, in the flowing of pipeline, dynamic changes the relevant environmental conditions such as temperature, pressure, drilling well Solution gas in liquid may also be converted to free state in flow process, and portion gas can enter as drilling fluid enters degasser Row degassing, but also there is portion gas then to be risen to by drilling fluid behind ground by liquid level directly to escape in air, shadow Ring the precision that subsequent gases detect data.
Drilling recent years speed and efficiency requirements more and more higher, require more and more stricter, tradition to gas analysis, safety etc. Gas logging technology be difficult to meet oil-gas exploration and development demand.For this record is surveyed we have invented a kind of new downhole drill gas Well test device, solves above technical problem.
Utility model content
The purpose of this utility model is to provide a kind of gas in underground high temperature, hyperbaric environment to being dissolved in drilling fluid Carry out downhole drill gas detection logging test device that is online, testing and analyzing in real time.
The purpose of this utility model can be achieved by the following technical measures:
The downhole drill gas detection logging test device includes hydraulic module, gas detection module, control module and mud arteries and veins Generator is rushed, by the movement of piston in the hydraulic module, annular space drilling fluid is flowed into the hydraulic module, gas detection mould Block is connected to the content of methane gas in the hydraulic module, measurement annular space drilling fluid, and by the measured value, determines the first in stratum The concentration of alkane gas, and by gas concentration data transfer to the control module, the control module is connected to the gas detection module, The data that the gas detection module is transmitted are handled, and the data for uploading to ground system will be needed to be sent to mud-pulse generation Device, the mud pulse generator is connected to the control module, it would be desirable to upload to the data shift signal of ground system into mud Pulse signal, and ground system is transferred to, ground system obtains uploading data after mud pulse signal is understood.
The purpose of this utility model can be also achieved by the following technical measures:
The downhole drill gas detection logging test device also includes filtering module, and the filtering module is located under the hydraulic module Side, to remove the landwaste in annular space drilling fluid.
The downhole drill gas detection logging test device also includes pressure compensation module, and the pressure compensation module is connected to the liquid Die block so that the tank pressure of the hydraulic module is slightly above annular pressure, and realizes the oil of the hydraulic module under different depth Case pressure is automatically adjusted.
The downhole drill gas detection logging test device also includes down-hole power module, and the down-hole power module is connected to the liquid Die block, the gas detection module, the control module and the mud pulse generator, to provide power supply.
The down-hole power module includes high-temperature battery group and mud turbine generator, and the mud turbine generator is the underground With the main power source for boring gas detection logging test device, the high-temperature battery group is stand-by power supply.
The hydraulic module also includes temperature sensor, pressure sensor and displacement transducer, the temperature sensor, the pressure Sensor and displacement transducer collection downhole temperature, pressure and displacement data.
Downhole drill gas detection logging test device in the utility model, can in real time, canbe used on line mine gas (such as: The gases such as methane, carbon dioxide, hydrogen sulfide) parameter detecting, solve the information that traditional gas detection logging is brought in ground detection Lag issues, lift the accuracy of test result, valuable tutorial message are provided for follow-up exploration and development.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the schematic diagram of embodiment of the present utility model.
Embodiment
To enable above and other objects, features and advantages of the present utility model to become apparent, it is cited below particularly go out preferably Embodiment, and coordinate shown in accompanying drawing, it is described in detail below.
As depicted in figs. 1 and 2, Fig. 1 is the structure chart of downhole drill gas detection logging test device of the present utility model, Fig. 2 For the schematic diagram of downhole drill gas detection logging test device.The downhole drill gas detection logging test device includes mud-pulse Device 1, down-hole power module 2, control module 3, pressure compensation module 4, gas detection module 5, hydraulic module 6, filtering module 7.
Filtering module 7, for removing the landwaste in annular space drilling fluid, to avoid bulky grain from entering hydraulic system, to hydraulic pressure Cylinder, hydraulic valve cause serious damage.Because downhole tool needs 3~4 days time between failures, it is desirable to filtering module 7 Can continuous in a long time, normal filtration, the i.e. function with the formation for preventing mud cake, the filtering module 7 can be filter Net or centrifuge, are characterized in anti-clogging.
Hydraulic module 6 is connected to filtering module 7, and hydraulic module is the action actuating mechanism of the device, it include hydraulic pump, Hydraulic manifold block, hydraulic valve, hydraulic cylinder, temperature sensor, pressure sensor, displacement transducer etc..Its main function is to perform Row's action outside mud suction, mud decompression and mud.
Gas detection module 5 is connected to hydraulic module 6, is connected by circuit with down-hole power module 2, control module 3, uses In the content of the gas such as methane in measurement annular space drilling fluid, and by the measured value, the concentration of the gases such as methane in stratum is determined, And by gas concentration data transfer to control module.
Pressure compensation module 4 is connected to hydraulic module 6, and its piston side is connected with the fuel tank of hydraulic module 6, opposite side with Annular space mud is connected with compression spring, and the tank pressure of hydraulic module can be protected from annular pressure under different well depths and spring pressure Hold dynamic equilibrium so that the tank pressure of hydraulic module 6 is slightly above annular pressure, i.e., only allow hydraulic oil unidirectionally to be let out to annular space Leakage, does not allow the drilling fluid in annular space to enter in hydraulic module 6.Simultaneously with the change of test device depth of falling well, the module Realize that the tank pressure of hydraulic module 6 under different depth is automatically adjusted.
Control module 3 is connected to pressure compensation module 4, by circuit and mud pulse generator 1, down-hole power module 2, Control module 3 is connected, and the operational order of underground is passed to for receiving ground system, then controls fluid die using SCM program The status information of sensor (is passed including temperature sensor, pressure in one example in block 6, collection, storage, processing test device Sensor, displacement transducer);The data that processing gas detection module 5 is transmitted, and the data for uploading to ground system will be needed to transmit To mud pulse generator 1.
Down-hole power module 2 is connected to mud pulse generator 1, control module 3, gas detection module 5 and hydraulic module 6, including high-temperature battery group, mud turbine generator.Because the utility model works in long-time, therefore using mud whirlpool Turbine generator is used as the main power source of test device, the element confession big to power consumption such as immersion oil motor, magnetic valves in hydraulic module 6 Energy;Using high-temperature battery group as stand-by power supply, mud pulse generator 1, control module 3, gas detection module 5 are powered, Ensure that test device control is normal when mud turbine generator fails.
Mud pulse generator 1 is connected to control module 3, is connected by circuit with down-hole power module 2, it would be desirable to upload Data shift signal to ground system is transferred to ground system into mud pulse signal, and ground system believes mud-pulse Number understand after obtain upload data
The outer barrel of test device is connected by adapter 8 with standard drill collar 9, and is disposed adjacent at drill bit 10;
Modules in test device complete the electric association between module using electric plug connector, fluid connection The fluid that reconciles is transmitted.
The running of downhole drill gas detection logging test device of the present utility model is as follows:
The first step, by the movement of piston in hydraulic module 6, makes the rodless cavity volume of hydraulic cylinder start from scratch increase, survey Inside is put in trial assembly will form low pressure, and annular space drilling fluid is then flowed into hydraulic module 6 in the rodless cavity of hydraulic cylinder through via 71.In stream During entering, filtering module 7 removes the landwaste in drilling fluid.
Second step, control module 3 closes the stop valve in hydraulic module 6, and described stop valve one end is connected with annular space, separately One end is connected with hydraulic cylinder rodless cavity.Continue the volume of increase hydraulic cylinder rodless cavity simultaneously, due to flowing into hydraulic cylinder rodless cavity Drilling fluid mass conservation, but the volume increase of drilling fluid, then drilling fluid is quickly reduced to low pressure from high pressure, and along with gas Separate out.Now gas detection module 5 can be detected to the gas of precipitation in a low pressure environment, and send the data to control mould Block 3.Control module 3 is handled, after analyze data, sends result to ground system by mud pulse generator 1.
3rd step, after gasmetry is finished, hydraulic module 6 makes hydraulic cylinder by opening stop valve and promoting piston to return The drilling fluid dispatch of detection has inside been completed into annular space.In one example, drilling fluid drains into ring out of test device through via 71 It is empty.In another example, another aperture connected out of hydraulic module 6 with annular space drains into annular space.
In summary, preferred embodiment of the present utility model is these are only, is not intended to limit of the present utility model Protection domain.

Claims (6)

1. a kind of downhole drill gas detection logging test device, it is characterised in that the downhole drill gas detection logging test device includes Hydraulic module, gas detection module, control module and mud pulse generator, by the movement of piston in the hydraulic module, make Annular space drilling fluid is flowed into the hydraulic module, and the gas detection module is connected to first in the hydraulic module, measurement annular space drilling fluid The content of alkane gas, and by the measured value, determines the concentration of the methane gas in stratum, and by gas concentration data transfer to should Control module, the control module is connected to the gas detection module, handles the data that the gas detection module is transmitted, and will need The data for uploading to ground system are sent to the mud pulse generator, and the mud pulse generator is connected to the control module, The data shift signal for uploading to ground system will be needed into mud pulse signal, and be transferred to ground system, ground system will Mud pulse signal obtains uploading data after understanding.
2. a kind of downhole drill gas detection logging test device according to claim 1, it is characterised in that the downhole drill gas Surveying well logging test device also includes filtering module, and the filtering module is located at the lower section of the hydraulic module, to remove annular space drilling fluid Interior landwaste.
3. a kind of downhole drill gas detection logging test device according to claim 1, it is characterised in that the downhole drill gas Surveying well logging test device also includes pressure compensation module, and the pressure compensation module is connected to the hydraulic module so that the fluid die The tank pressure of block is slightly above annular pressure, and realizes that the tank pressure of the hydraulic module under different depth is automatically adjusted.
4. a kind of downhole drill gas detection logging test device according to claim 1, it is characterised in that the downhole drill gas Surveying well logging test device also includes down-hole power module, and the down-hole power module is connected to the hydraulic module, gas detection mould Block, the control module and the mud pulse generator, to provide power supply.
5. a kind of downhole drill gas detection logging test device according to claim 4, it is characterised in that the down-hole power mould Block includes high-temperature battery group and mud turbine generator, and the mud turbine generator is the downhole drill gas detection logging test device Main power source, the high-temperature battery group be stand-by power supply.
6. a kind of downhole drill gas detection logging test device according to claim 1, it is characterised in that the hydraulic module is also Including temperature sensor, pressure sensor and displacement transducer, the temperature sensor, the pressure sensor and the displacement transducer Gather downhole temperature, pressure and displacement data.
CN201720060698.5U 2017-01-16 2017-01-16 A kind of downhole drill gas detection logging test device Active CN206397498U (en)

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Application Number Priority Date Filing Date Title
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Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108979625A (en) * 2018-07-24 2018-12-11 中国石油大学(北京) A kind of radial well trajectory measurement apparatus and system
CN110552644A (en) * 2019-10-05 2019-12-10 中国石油大学(华东) In-situ coal rock heat-preservation pressure-maintaining coring device and application method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108979625A (en) * 2018-07-24 2018-12-11 中国石油大学(北京) A kind of radial well trajectory measurement apparatus and system
CN110552644A (en) * 2019-10-05 2019-12-10 中国石油大学(华东) In-situ coal rock heat-preservation pressure-maintaining coring device and application method

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