CN109025974B - Long duration mud pulse while drilling bottom pressure monitoring device - Google Patents
Long duration mud pulse while drilling bottom pressure monitoring device Download PDFInfo
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- CN109025974B CN109025974B CN201811090070.5A CN201811090070A CN109025974B CN 109025974 B CN109025974 B CN 109025974B CN 201811090070 A CN201811090070 A CN 201811090070A CN 109025974 B CN109025974 B CN 109025974B
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- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 238000012806 monitoring device Methods 0.000 title claims abstract description 21
- 210000002445 nipple Anatomy 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 74
- 230000001681 protective effect Effects 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 23
- 230000000670 limiting effect Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 14
- 239000004519 grease Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000036961 partial effect Effects 0.000 description 5
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/02—Adaptations for drilling wells
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Geochemistry & Mineralogy (AREA)
- Acoustics & Sound (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of underground monitoring tools, in particular to a long-endurance mud pulse while-drilling bottom pressure monitoring device which comprises a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a fifth cylinder and a connecting nipple. The invention has reasonable and compact structure, and by redesigning the internal structure of the mud pulse while drilling bottom pressure monitoring device, the invention not only can carry the high-energy lithium battery pack, but also can utilize mud circularly flowing in the well to push the turbine on the generator assembly, so that the generator assembly can generate electric energy which is enough to enable the invention to continuously work in the well for a long time, thereby reducing the drilling times, shortening the working period of drilling and saving the cost.
Description
Technical Field
The invention relates to the technical field of underground monitoring tools, in particular to a long-duration mud pulse while-drilling bottom pressure monitoring device.
Background
The system can timely and accurately acquire various pressure data at the bottom of the well, has important practical significance for protecting and finding an oil-gas layer, but the current PWD system is limited by the size of a well bore and the size of a drilling tool, can only carry a limited number of high-energy lithium battery packs, cannot enable a downhole instrument with larger power consumption and a drilling tool to continuously work for a long time, can only be forced to start drilling in advance to replace the battery after the battery is not powered, and then can continue drilling, repeatedly drill and drill, thereby bringing potential safety hazards to the oil well, greatly wasting manpower and material resources, having low working efficiency and seriously affecting the working period of drilling.
Disclosure of Invention
The invention provides a long-duration mud pulse while-drilling bottom pressure monitoring device, which overcomes the defects of the prior art and can effectively solve the problem that the conventional mud pulse while-drilling bottom pressure monitoring device cannot work continuously in a well for a long time.
The technical scheme of the invention is realized by the following measures: the long-duration mud pulse while-drilling bottom pressure monitoring device comprises a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a fifth cylinder and a connecting nipple, wherein the first cylinder, the second cylinder, the third cylinder, the fourth cylinder, the fifth cylinder and the connecting nipple are sequentially and fixedly connected from top to bottom, a mud pulse generator assembly is arranged in the first cylinder, a generator assembly is arranged in the second cylinder, an upper circuit channel is arranged in the generator assembly, a rotatable motor magnetic rotor turbine is arranged on a central shaft of the generator assembly, an upper fluid channel for liquid to flow is formed between the mud pulse generator assembly and the inner wall of the first cylinder and between the generator assembly and the inner wall of the second cylinder, the lower end of the mud pulse generator assembly is fixedly connected with the upper end of the generator assembly, an upper overcurrent sleeve is fixedly arranged in the upper part of the third cylinder, an upper overcurrent sleeve liquid channel is arranged in the upper overcurrent sleeve, a matched rotary plug and socket are arranged between the lower end of the generator assembly and the upper end of the upper overcurrent sleeve, a first protective sleeve is fixedly arranged at the matched rotary plug and socket part between the generator assembly and the upper overcurrent sleeve, a middle fluid channel for liquid to flow is formed between the generator assembly between the second cylinder and the upper overcurrent sleeve and the third cylinder, a first circuit channel is arranged in the upper overcurrent sleeve and communicated with the matched rotary plug and socket in the first protective sleeve, the upper section of the fourth cylinder is inserted in the third cylinder, the upper end face of the fourth cylinder is propped against the lower end face of the upper overcurrent sleeve, a lower overcurrent sleeve is fixedly arranged in the lower part of the fourth cylinder, a second circuit channel penetrating through the upper end of the fourth cylinder and the inner wall of the lower part of the fourth cylinder is arranged in the fourth cylinder, a third circuit channel communicated with a second circuit channel on the inner wall of the lower part of the fourth cylinder is arranged in the lower flow sleeve, a second fluid channel is arranged in the lower flow sleeve, a matched rotary plug and socket are arranged in the lower end of the lower flow sleeve corresponding to the third circuit channel, an inverted Y-shaped flow guide cone is fixedly arranged in the fifth cylinder, at least one third fluid channel communicated with the inner part and the outer part of the flow guide cone is arranged at the inclined shoulder part of the flow guide cone, a connecting cylinder is fixedly connected to the upper end of the flow guide cone, a second protective sleeve is fixedly arranged outside the matched rotary plug and socket between the lower flow guide sleeve and the connecting cylinder, a fourth circuit channel penetrating through the upper end and the lower end of the flow guide cone is arranged in the flow guide cone, a lower fluid channel is formed between the second protective sleeve, the connecting cylinder and the inclined shoulder part of the flow guide cone, an electronic cabin cylinder is fixedly arranged in the fifth cylinder below the flow guide cone, an electronic cabin is arranged on the outer wall of the lower part of the electronic cabin, a temperature monitoring component is fixedly arranged in the electronic cabin, a temperature monitoring component is arranged in the electronic cabin, and is correspondingly connected to the upper end face of the electronic cabin, and the electronic cabin is also arranged in the electronic cabin; the upper circuit channel, the first protective sleeve inner cavity, the first circuit channel, the second circuit channel, the third circuit channel, the second protective sleeve inner cavity, the connecting cylinder inner cavity, the fourth circuit channel and the fifth circuit channel are sequentially communicated to form a circuit channel, and the upper fluid channel, the middle fluid channel, the upper overflow sleeve liquid channel, the inner cavity of the fourth cylinder, the second fluid channel, the lower fluid channel, the third fluid channel, the guide cone inner cavity, the electronic cabin inner cavity, the guide ring inner cavity and the connecting nipple inner cavity are sequentially communicated to form a fluid channel.
The following are further optimizations and/or improvements to the above-described inventive solution:
the above-mentioned in the inner wall position of hugging closely first barrel from top to bottom has set gradually flow-limiting ring bearing, the flow-limiting ring, support the drum, first adjustment shell ring, the lower terminal surface of flow-limiting ring bearing is limited by the first draw-in groove on the first barrel inner wall, the up end of flow-limiting ring bearing is limited by the jump ring of inlay card on first barrel inner wall, be provided with a plurality of filter rods on the inner wall of flow-limiting ring bearing entry end, inlay card has the flow-limiting ring on the inner wall of flow-limiting ring bearing exit end, the up end roof pressure of support drum is on the lower terminal surface of flow-limiting ring bearing and flow-limiting ring, the upper portion of mud pulse generator assembly passes the flow-limiting ring and inserts the inside of flow-limiting ring bearing, the lower terminal surface of first adjustment shell ring is limited in the second draw-in groove on first barrel inner wall.
The lower inner wall of the second cylinder body is provided with the centralizer which enables the mud pulse generator assembly and the generator assembly to keep the middle position, the centralizer is provided with the first fluid channel, the upper fluid channel, the first fluid channel, the middle fluid channel, the upper flow sleeve fluid channel, the inner cavity of the fourth cylinder body, the second fluid channel, the lower fluid channel, the third fluid channel, the inner cavity of the diversion cone, the inner cavity of the electronic cabin cylinder, the inner cavity of the diversion ring and the inner cavity of the connecting nipple are sequentially communicated to form the fluid channel.
The second adjusting cylinder section and the flow pipe are sequentially arranged at the position, close to the inner wall of the second cylinder body, from top to bottom, the upper end face of the second adjusting cylinder section is propped against the lower end face of the first cylinder body, the lower end face of the flow pipe is propped against the upper end face of the centralizer, and the lower end face of the centralizer is limited by the third clamping groove on the inner wall of the second cylinder body.
The electronic cabin comprises a left cabin and a right cabin, a wire passing positioning sleeve assembly is arranged between the lower end face of the guide cone corresponding to the fourth circuit channel and the upper end face of the electronic cabin barrel corresponding to the fifth circuit channel, a thermometer assembly and a pressure gauge assembly are sequentially arranged in the left cabin from top to bottom, a pressure measuring hole is formed in the outer wall of a fifth barrel on the lower side of the pressure gauge assembly, a battery assembly is arranged in the right cabin, and a detection hole and a grease injection hole are sequentially formed in the outer wall of the fifth barrel on the lower side of the battery assembly from top to bottom.
The inner wall end of the lower part of the fourth barrel body of the second circuit channel is provided with a counter bore, a cover plate is fixedly arranged in the outer side of the counter bore, the counter bore is communicated with the second circuit channel and the third circuit channel, and the upper circuit channel, the first protecting sleeve inner cavity, the first circuit channel, the second circuit channel, the counter bore, the third circuit channel, the second protecting sleeve inner cavity, the connecting cylinder inner cavity, the fourth circuit channel and the fifth circuit channel are sequentially communicated to form the circuit channel.
The first positioning pin is arranged between the centralizer and the flow pipe, the second positioning pin which is propped against the right end face of the guide cone is arranged on the outer wall of the fifth cylinder, and the third positioning pin is arranged between the guide ring and the right cabin.
At least two sealing rings are arranged between the outer wall of the flow limiting ring bearing seat and the inner wall of the first cylinder body, sealing rings are arranged between the flow limiting ring and the flow limiting ring bearing seat, sealing rings are arranged between the flow limiting ring bearing seat and the first clamping groove, and sealing rings are arranged between the supporting cylinder and the inner wall of the first cylinder body.
The filter rods are in a conical array structure.
The invention has reasonable and compact structure, and by redesigning the internal structure of the mud pulse while drilling bottom pressure monitoring device, the invention not only can carry the high-energy lithium battery pack, but also can utilize mud circularly flowing in the well to push the turbine on the generator assembly, so that the generator assembly can generate electric energy which is enough to enable the invention to continuously work in the well for a long time, thereby reducing the drilling times, shortening the working period of drilling and saving the cost.
Drawings
Fig. 1 is a schematic view of a partial sectional structure of a preferred embodiment of the present invention.
Fig. 2 is a schematic view of a partial enlarged structure of the section a in fig. 1.
Fig. 3 is a schematic view of a partial enlarged structure of section B in fig. 1.
Fig. 4 is a schematic view of a partial enlarged structure of section C in fig. 1.
Fig. 5 is a schematic view of a partial enlarged structure of section D in fig. 1.
The codes in the drawings are respectively: 1 is a clamp spring, 2 is a filter rod, 3 is a first cylinder, 4 is a flow limiting ring bearing seat, 5 is a flow limiting ring, 6 is a supporting cylinder, 7 is a mud pulse generator assembly, 8 is a first adjusting cylinder section, 9 is a second adjusting cylinder section, 10 is a generator assembly, 11 is a second cylinder, 12 is a flow pipe, 13 is a centralizer, 14 is a first fluid channel, 15 is a first positioning pin, 16 is a first protective sleeve, 17 is a matched rotary plug and socket, 18 is an upper flow sleeve, 19 is a first circuit channel, 20 is a third cylinder, 21 is a fourth cylinder, 22 is a lower flow sleeve, 23 is a second fluid channel, 24 is a second circuit channel, 25 is a third circuit channel, 26 is a counter bore, 27 is a cover plate, 28 is an electronic cabin cylinder, 29 is a second protective sleeve, 30 is a connecting cylinder, 31 is a guide cone, 32 is a third fluid channel, 33 is a fourth circuit channel, 34 is a second locating pin, 35 is a line passing locating sleeve component, 36 is a left cabin, 37 is a right cabin, 38 is a fifth cylinder, 39 is a battery component, 40 is a pressure measuring hole, 41 is a detecting hole, 42 is a grease injecting hole, 43 is a third locating pin, 44 is a guide ring, 45 is a connecting nipple, 46 is a sealing ring, 47 is a lower fluid channel, 48 is a temperature pressure component, 49 is an upper circuit channel, 50 is a first clamping groove, 51 is a second clamping groove, 52 is a third clamping groove, 53 is a magnetic rotor turbine of a motor, 54 is a fifth circuit channel, 55 is an upper fluid channel, and 56 is a middle fluid channel.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described below with reference to examples and figures:
as shown in fig. 1-5, the long-duration mud pulse while-drilling bottom pressure monitoring device comprises a first cylinder 3, a second cylinder 11, a third cylinder 20, a fourth cylinder 21, a fifth cylinder 38 and a connecting nipple 45, wherein the first cylinder 3, the second cylinder 11, the third cylinder 20, the fourth cylinder 21, the fifth cylinder 38 and the connecting nipple 45 are sequentially and fixedly connected from top to bottom, a mud pulse generator assembly 7 is arranged in the first cylinder 3, a generator assembly 10 is arranged in the second cylinder 11, an upper circuit channel 49 is arranged in the generator assembly 10, a rotatable motor magnetic rotor turbine 53 is arranged on a central shaft of the generator assembly 10, an upper fluid channel 55 for liquid flow is formed between the mud pulse generator assembly 7 and the inner wall of the first cylinder 3 and between the generator assembly 10 and the inner wall of the second cylinder 11, the lower end of the mud pulse generator assembly 7 is fixedly connected with the upper end of the generator assembly 10, an upper flow sleeve 18 is fixedly arranged in the upper part of the third cylinder 20, an upper flow sleeve liquid channel is arranged in the upper flow sleeve 18, a matched rotary plug and socket 17 is arranged between the lower end of the generator assembly 10 and the upper end of the upper flow sleeve 18, a first protective sleeve 16 is fixedly arranged outside the matched rotary plug and socket 17 between the generator assembly 10 and the upper flow sleeve 18, a middle fluid channel 56 for liquid flow is formed between the generator assembly 10 between the second cylinder 11 and the upper flow sleeve 18 and the third cylinder 20, a first circuit channel 19 is arranged in the upper flow sleeve 18, the first circuit channel 14 is communicated with the matched rotary plug and socket 17 in the first protective sleeve 16, the upper section of the fourth cylinder 21 is inserted in the third cylinder 20, the upper end face of the fourth cylinder 21 is propped against the lower end face of the upper flow sleeve 18, a lower flow-through sleeve 22 is fixedly arranged in the lower part of the fourth cylinder 21, a second circuit channel 24 penetrating through the upper end of the fourth cylinder 21 and the inner wall of the lower part of the fourth cylinder is arranged in the fourth cylinder 21, a third circuit channel 25 communicated with the second circuit channel 24 of the lower inner wall of the fourth cylinder is arranged in the lower flow-through sleeve 22, a second fluid channel 23 is arranged in the lower flow-through sleeve 22, a matched rotary plug and socket 17 is arranged in the lower end of the lower flow-through sleeve 22 corresponding to the third circuit channel 25, an inverted Y-shaped flow guide cone 31 is fixedly arranged in the fifth cylinder 38, at least one third fluid channel 32 communicated with the inner part and the outer part of the flow guide cone 31 is arranged at the inclined shoulder part of the flow guide cone 31, the upper end of the flow guide cone 31 is fixedly connected with a connecting cylinder 30, a second protective sleeve 29 is fixedly arranged outside the matched rotary plug and socket 17 between the lower flow-through sleeve 22 and the connecting cylinder 30, a fourth circuit channel 33 penetrating through the upper end and the lower end of the guide cone 31 is arranged in the guide cone 31, a lower fluid channel 47 is formed between the lower overcurrent sleeve 22 and the inclined shoulder part of the guide cone 31, a lower fluid channel 29 is formed between the connecting cylinder 30 and the fourth cylinder 21 and the fifth cylinder 38, an electronic cabin cylinder 28 is fixedly arranged in the fifth cylinder 38 below the guide cone 31, an electronic cabin is arranged on the outer wall of the lower part of the electronic cabin 28, a temperature pressure component 48 capable of monitoring temperature and pressure is arranged in the electronic cabin, a battery component 39 is also arranged in the electronic cabin, a fifth circuit channel 54 communicated with the electronic cabin is arranged on the electronic cabin corresponding to the fourth circuit channel 33, and a guide ring 44 is arranged between the lower end surface of the electronic cabin and the upper end surface of the connecting nipple 45; the upper circuit channel 49, the first protection sleeve 16 inner cavity, the first circuit channel 19, the second circuit channel 24, the third circuit channel 25, the second protection sleeve 29 inner cavity, the connecting cylinder 30 inner cavity, the fourth circuit channel 33 and the fifth circuit channel 54 are sequentially communicated to form a circuit channel, and the upper fluid channel 55, the middle fluid channel 56, the upper overflow sleeve liquid channel, the inner cavity of the fourth cylinder 21, the second fluid channel 23, the lower fluid channel 47, the third fluid channel 32, the guide cone 31 inner cavity, the electronic cabin 28 inner cavity, the guide ring 44 inner cavity and the connecting nipple 45 inner cavity are sequentially communicated to form a fluid channel.
The mud pulse generator assembly 7, the generator assembly 10 and the matched rotary plug and socket 17 are all known in the prior art; the upper circuit channel 49, the first protecting sleeve 16 inner cavity, the first circuit channel 19, the second circuit channel 24, the third circuit channel 25, the second protecting sleeve 29 inner cavity, the connecting cylinder 30 inner cavity, the fourth circuit channel 33 and the fifth circuit channel 54 jointly form the circuit channel of the invention, the upper fluid channel 55, the middle fluid channel 56, the upper overflow sleeve liquid channel, the inner cavity of the fourth cylinder 21, the second fluid channel 23, the lower fluid channel 47, the third fluid channel 32, the inner cavity of the flow guide cone 31, the inner cavity of the electronic cabin 28, the inner cavity of the flow guide ring 44 and the inner cavity of the connecting nipple 45 jointly form the mud flow channel of the invention, and the circuit wires are arranged in the circuit channels, so that the erosion of mud to a power transmission line is effectively avoided, and the circuit safety in the device is effectively protected. When mud enters the upper fluid passage 55 from the first barrel 3, the flowing mud can push the motor magnetic rotor turbine 53 to rotate, so that the generator assembly 10 generates electric energy, the electric energy generated by the invention can meet the electric energy requirements of a circuit system and most instruments of the electric energy, the dependence on a battery assembly 39 of the electric energy is reduced, the working time of the device in a well is greatly prolonged, the drilling times are reduced, the working efficiency is improved, the upper and lower flow-through sleeves 18 and 22 are passages for connecting an upper circuit and a lower circuit and are passages for mud to pass through, the matched rotary plug and socket 17 in the first protective sleeve 16 and the matched rotary plug and socket 17 in the second protective sleeve play a role in connecting the upper circuit and the lower circuit, the first protective sleeve 16 and the second protective sleeve 29 ensure that the matched rotary plug and socket 17 are not damaged by mud, the smoothness of the circuit is ensured, the flow-through ring 44 has a certain flow-guiding function on mud, and also plays a role in dispersing internal stress.
The long-duration mud pulse while-drilling bottom pressure monitoring device can be further optimized or/and improved according to actual needs:
as shown in fig. 1 and 2, a flow-limiting ring bearing 4, a flow-limiting ring 5, a supporting cylinder 6 and a first adjusting cylinder section 8 are sequentially arranged at the position close to the inner wall of the first cylinder body 3 from top to bottom, the lower end face of the flow-limiting ring bearing 4 is limited by a first clamping groove 50 on the inner wall of the first cylinder body 3, the upper end face of the flow-limiting ring bearing 4 is limited by a clamping spring 1 clamped on the inner wall of the first cylinder body 3, a plurality of filter rods 2 are arranged on the inner wall of the inlet end of the flow-limiting ring bearing 4, the flow-limiting ring 5 is clamped on the inner wall of the outlet end of the flow-limiting ring bearing 4, the upper end face of the supporting cylinder 6 is propped against the lower end faces of the flow-limiting ring bearing 4 and the flow-limiting ring 5, the upper part of the mud pulse generator assembly 7 penetrates through the flow-limiting ring 5 to be inserted into the flow-limiting ring bearing 4, and the lower end face of the first adjusting cylinder section 8 is limited in a second clamping groove 51 on the inner wall of the first cylinder body 3. The mud that circulates and flows enters into first barrel 3 from the flow-limiting ring bearing 4 entry of upper end, the mud can jack up the mushroom head on the mud pulser assembly 7, the inside of mushroom head is provided with the spring, can produce the space between flow-limiting ring 5 and mushroom head after the spring compression deformation, the mud can flow into second barrel 11 along this space unidirectionally, the flow of mud is unfavorable too big, the too big rotational speed that can lead to turbine 53, the electric current is too big, the generator assembly 10 breaks down very easily, through adjusting turbine 53 blade parameter and flow-limiting ring 5, can adjust the flow of mud, and then adjust the rotational speed of turbine 53, thereby play the effect of adjusting output current size, this flow-limiting ring bearing 4, support drum 6, first adjustment section 8 all plays a support protection, disperse internal stress, the mud flows through from their inside, also play the effect of liquid flow channel, the inner wall of first barrel 3 has been protected from the erosion of mud.
As shown in fig. 1, 2 and 3, a centralizer 13 for keeping the mud pulse generator assembly 7 and the generator assembly 10 in a central position is arranged on the inner wall of the lower part of the second cylinder 11, a first fluid channel 14 is arranged on the centralizer 13, and an upper fluid channel 55, a first fluid channel 40, a middle fluid channel 56, an upper overflow sleeve fluid channel, an inner cavity of the fourth cylinder 21, a second fluid channel 23, a lower fluid channel 47, a third fluid channel 32, an inner cavity of a guide cone 31, an inner cavity of an electronic cabin 28, an inner cavity of a guide ring 44 and an inner cavity of a connecting nipple 45 are sequentially communicated to form a fluid channel. The mud pulse generator assembly 7 and the generator assembly 10 are kept in the middle position, so that equipment damage caused by long-time use of the instrument is avoided.
As shown in fig. 1, 2 and 3, a second adjusting cylinder 9 and a flow tube 12 are sequentially arranged from top to bottom at the position close to the inner wall of the second cylinder 11, the upper end face of the second adjusting cylinder 9 is propped against the lower end face of the first cylinder 3, the lower end face of the flow tube 12 is propped against the upper end face of the centralizer 13, and the lower end face of the centralizer 13 is limited by a third clamping groove 52 on the inner wall of the second cylinder 11. The arrangement of the second adjusting cylinder 9 and the flow tube 12 not only plays a role in supporting, protecting and dispersing internal stress, but also plays a role in a fluid passage for mud to flow through, and protects the inner wall of the second cylinder 11 from being eroded by mud.
As shown in fig. 1, 4 and 5, the electronic cabin comprises a left cabin 36 and a right cabin 37, a wire passing positioning sleeve assembly 35 is arranged between the lower end face of a guide cone 31 corresponding to the fourth circuit channel 33 and the upper end face of an electronic cabin barrel 28 corresponding to the fifth circuit channel 54, a temperature pressure assembly 48 is arranged in the left cabin 36, a pressure measuring hole 40 is arranged on the outer wall of a fifth barrel 38 corresponding to the lower end of the temperature pressure assembly 48, a battery assembly 39 is arranged in the right cabin 37, and a detection hole 41 and a grease injecting hole 42 are sequentially arranged on the outer wall of the fifth barrel 38 corresponding to the lower end of the battery assembly 39 from top to bottom. In practical use, the temperature and pressure assembly 48 is generally a platinum resistance thermometer assembly and a crystal pressure gauge assembly, which not only have stable performance, but also have higher precision, when slurry contacts silicone grease in the pressure measuring hole 40, temperature signals and pressure signals are transmitted into the temperature and pressure assembly 48 to obtain relevant temperature values and pressure values, and the wire passing positioning sleeve assembly 35 has the function of enabling circuit wires in the device to smoothly pass through obstacles, so that the temperature gauge assembly, the pressure gauge assembly and the battery assembly 39 are connected with the circuit system of the whole device.
As shown in fig. 1, 2, 3, 4 and 5, the inner wall end of the lower part of the fourth cylinder 21 of the second circuit channel 24 is provided with a counter bore 26, a cover plate 27 is fixedly arranged in the outer side of the counter bore 26, the counter bore 26 is communicated with the second circuit channel 24 and the third circuit channel 25, and the upper circuit channel 49, the inner cavity of the first protective sleeve 16, the first circuit channel 19, the second circuit channel 24, the counter bore 26, the third circuit channel 25, the inner cavity of the second protective sleeve 29, the inner cavity of the connecting cylinder 30, the fourth circuit channel 33 and the fifth circuit channel 54 are sequentially communicated to form a circuit channel. The provision of the counterbore 26 and the cover plate 27 is for facilitating later circuit maintenance.
As shown in fig. 1, 2, 3, 4 and 5, a first positioning pin 15 is arranged between the centralizer 13 and the flow tube 12, a second positioning pin 34 which is propped against the right end face of the diversion cone 31 is arranged on the outer wall of the fifth cylinder 38, and a third positioning pin 43 is arranged between the diversion ring 44 and the right cabin 37. The first positioning pin 15, the second positioning pin 34, and the third positioning pin 43 are provided to prevent rotation of the connection between the members, and to effectively transmit load.
As shown in fig. 1 and 2, at least two sealing rings 46 are arranged between the outer wall of the flow-limiting ring bearing seat 4 and the inner wall of the first cylinder body 3, the sealing rings 46 are arranged between the flow-limiting ring 5 and the flow-limiting ring bearing seat 4, the sealing rings 46 are arranged between the flow-limiting ring bearing seat 4 and the first clamping groove 50, and the sealing rings 46 are arranged between the supporting cylinder 6 and the inner wall of the first cylinder body 3. The sealing ring 46 can enhance the sealing performance of the device and ensure the stable working performance of the device.
As shown in fig. 1 and 2, the filter rods 2 have a conical array structure. Compared with the filter rods 2 arranged in a straight shape, the filter rods 2 arranged in a conical shape increase the surface area of filtration and improve the filtration efficiency.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
The invention relates to a mud pulse while drilling bottom pressure monitoring system which is redesigned, a third barrel 20, a fourth barrel 21 and a fifth barrel 38 are circuit pup joints, a plurality of circuit systems are arranged in the circuit pup joints, wherein the circuit pup joints comprise pulse coding control circuits, the invention is arranged near a drill bit and is placed in a well along with a drilling tool, when drilling operation starts, mud starts to circulate, a motor magnetic rotor turbine 53 on a generator assembly 10 starts to rotate along with flowing mud, the generator assembly 10 generates alternating current, the alternating current converts an alternating current power supply into direct current through a rectifying circuit module in the circuit pup joints, a power supply is provided for the circuit systems in the invention, a temperature pressure component 48 dynamically collects bottom pressure and temperature parameters, then the pulse coding control circuit enables the mud pulse generator assembly 7 to act, a pressure pulse signal is formed in the drill string, a pressure sensor on the ground is transmitted to a ground computer through a bus to decode after receiving the pressure pulse signal, and bottom pressure and temperature values are finally reduced.
Claims (10)
1. The long-endurance mud pulse while-drilling bottom pressure monitoring device is characterized by comprising a first barrel, a second barrel, a third barrel, a fourth barrel, a fifth barrel and a connecting nipple, wherein the first barrel, the second barrel, the third barrel, the fourth barrel, the fifth barrel and the connecting nipple are sequentially and fixedly connected from top to bottom, a mud pulse generator assembly is arranged in the first barrel, a generator assembly is arranged in the second barrel, an upper circuit channel is arranged in the generator assembly, a rotatable motor magnetic rotor turbine is arranged on a central shaft of the generator assembly, an upper fluid channel for liquid to flow is formed between the mud pulse generator assembly and the inner wall of the first barrel and between the generator assembly and the inner wall of the second barrel, the lower end of the mud pulse generator assembly is fixedly connected with the upper end of the generator assembly, an upper flow sleeve is fixedly arranged in the upper part of the third barrel, an upper overcurrent sleeve liquid channel is arranged in the upper overcurrent sleeve, a matched rotary plug and socket are arranged between the lower end of the generator assembly and the upper end of the upper overcurrent sleeve, a first protective sleeve is fixedly arranged at the matched rotary plug and socket part between the generator assembly and the upper overcurrent sleeve, a middle fluid channel for liquid to flow is formed between the generator assembly between the second cylinder and the upper overcurrent sleeve and the third cylinder, a first circuit channel is arranged in the upper overcurrent sleeve and communicated with the matched rotary plug and socket in the first protective sleeve, the upper section of the fourth cylinder is inserted in the third cylinder, the upper end face of the fourth cylinder is propped against the lower end face of the upper overcurrent sleeve, a lower overcurrent sleeve is fixedly arranged in the lower part of the fourth cylinder, a second circuit channel penetrating through the upper end of the fourth cylinder and the inner wall of the lower part of the fourth cylinder is arranged in the fourth cylinder, a third circuit channel communicated with a second circuit channel on the inner wall of the lower part of the fourth cylinder is arranged in the lower flow sleeve, a second fluid channel is arranged in the lower flow sleeve, a matched rotary plug and socket are arranged in the lower end of the lower flow sleeve corresponding to the third circuit channel, an inverted Y-shaped flow guide cone is fixedly arranged in the fifth cylinder, at least one third fluid channel communicated with the inner part and the outer part of the flow guide cone is arranged at the inclined shoulder part of the flow guide cone, a connecting cylinder is fixedly connected to the upper end of the flow guide cone, a second protective sleeve is fixedly arranged outside the matched rotary plug and socket between the lower flow guide sleeve and the connecting cylinder, a fourth circuit channel penetrating through the upper end and the lower end of the flow guide cone is arranged in the flow guide cone, a lower fluid channel is formed between the second protective sleeve, the connecting cylinder and the inclined shoulder part of the flow guide cone, an electronic cabin cylinder is fixedly arranged in the fifth cylinder below the flow guide cone, an electronic cabin is arranged on the outer wall of the lower part of the electronic cabin, a temperature monitoring component is fixedly arranged in the electronic cabin, a temperature monitoring component is arranged in the electronic cabin, and is correspondingly connected to the upper end face of the electronic cabin, and the electronic cabin is also arranged in the electronic cabin; the upper circuit channel, the first protective sleeve inner cavity, the first circuit channel, the second circuit channel, the third circuit channel, the second protective sleeve inner cavity, the connecting cylinder inner cavity, the fourth circuit channel and the fifth circuit channel are sequentially communicated to form a circuit channel, and the upper fluid channel, the middle fluid channel, the upper overflow sleeve liquid channel, the inner cavity of the fourth cylinder, the second fluid channel, the lower fluid channel, the third fluid channel, the guide cone inner cavity, the electronic cabin inner cavity, the guide ring inner cavity and the connecting nipple inner cavity are sequentially communicated to form a fluid channel.
2. The long-life mud pulse while-drilling bottom pressure monitoring device of claim 1, wherein a centralizer for maintaining the mud pulse generator assembly and the generator assembly in a centered position is arranged on the inner wall of the lower portion of the second barrel, a first fluid channel is arranged on the centralizer, and an upper fluid channel, a first fluid channel, a middle fluid channel, an upper overflow sleeve fluid channel, an inner cavity of the fourth barrel, a second fluid channel, a lower fluid channel, a third fluid channel, a guide cone inner cavity, an electronic cabin inner cavity, a guide ring inner cavity and a connecting nipple inner cavity are sequentially communicated to form a fluid channel.
3. The long-life mud pulse while-drilling bottom pressure monitoring device of claim 2, wherein a second adjusting cylinder section and a flow tube are sequentially arranged at the position close to the inner wall of the second cylinder body from top to bottom, the upper end face of the second adjusting cylinder section is propped against the lower end face of the first cylinder body, the lower end face of the flow tube is propped against the upper end face of a centralizer, and the lower end face of the centralizer is limited by a third clamping groove on the inner wall of the second cylinder body.
4. The long-duration slurry pulse while-drilling bottom pressure monitoring device according to claim 2 or 3, wherein a first positioning pin is arranged between the centralizer and the flow pipe, a second positioning pin which is propped against the right end face of the diversion cone is arranged on the outer wall of the fifth cylinder, and a third positioning pin is arranged between the diversion ring and the right cabin.
5. The long-life mud pulse while-drilling bottom pressure monitoring device according to claim 1, 2 or 3, wherein a flow-limiting ring bearing seat, a flow-limiting ring, a supporting cylinder and a first adjusting cylinder ring are sequentially arranged at the position close to the inner wall of the first cylinder body from top to bottom, the lower end face of the flow-limiting ring bearing seat is limited by a first clamping groove on the inner wall of the first cylinder body, the upper end face of the flow-limiting ring bearing seat is limited by a clamping spring clamped on the inner wall of the first cylinder body, a plurality of filter rods are arranged on the inner wall of the inlet end of the flow-limiting ring bearing seat, a flow-limiting ring is clamped on the inner wall of the outlet end of the flow-limiting ring bearing seat, the upper end face of the supporting cylinder is propped against the flow-limiting ring bearing seat and the lower end face of the flow-limiting ring, the upper part of the mud pulse generator assembly penetrates through the flow-limiting ring and is inserted into the flow-limiting ring bearing seat, and the lower end face of the first adjusting cylinder ring is limited in a second clamping groove on the inner wall of the first cylinder body.
6. The long-life mud pulse while-drilling bottom pressure monitoring device according to claim 1, 2 or 3, wherein the electronic cabin comprises a left cabin and a right cabin, a wire passing positioning sleeve assembly is arranged between the lower end face of a guide cone corresponding to the fourth circuit channel and the upper end face of an electronic cabin barrel corresponding to the fifth circuit channel, a thermometer assembly and a pressure gauge assembly are sequentially arranged in the left cabin from top to bottom, a pressure measuring hole is formed in the outer wall of a fifth barrel on the lower side of the pressure gauge assembly, a battery assembly is arranged in the right cabin, and a detection hole and a grease injecting hole are sequentially formed in the outer wall of the fifth barrel on the lower side of the battery assembly from top to bottom.
7. The long-duration mud pulse while-drilling bottom pressure monitoring device according to claim 5, wherein the electronic cabin comprises a left cabin and a right cabin, a wire passing positioning sleeve assembly is arranged between the lower end face of a guide cone corresponding to the fourth circuit channel and the upper end face of an electronic cabin barrel corresponding to the fifth circuit channel, a thermometer assembly and a pressure gauge assembly are sequentially arranged in the left cabin from top to bottom, a pressure measuring hole is formed in the outer wall of a fifth barrel on the lower side of the pressure gauge assembly, a battery assembly is arranged in the right cabin, and a detection hole and a grease injecting hole are sequentially formed in the outer wall of the fifth barrel on the lower side of the battery assembly from top to bottom.
8. The long-duration mud pulse while-drilling bottom pressure monitoring device according to claim 1, 2 or 3, wherein the inner wall end of the lower part of the fourth barrel of the second circuit channel is a counter bore, a cover plate is fixedly arranged in the outer side of the counter bore, the counter bore is communicated with the second circuit channel and the third circuit channel, and the upper circuit channel, the first protective sleeve inner cavity, the first circuit channel, the second circuit channel, the counter bore, the third circuit channel, the second protective sleeve inner cavity, the connecting cylinder inner cavity, the fourth circuit channel and the fifth circuit channel are sequentially communicated to form a circuit channel; or/and at least two sealing rings are arranged between the outer wall of the flow limiting ring bearing seat and the inner wall of the first cylinder body, a sealing ring is arranged between the flow limiting ring and the flow limiting ring bearing seat, a sealing ring is arranged between the flow limiting ring bearing seat and the first clamping groove, and a sealing ring is arranged between the supporting cylinder and the inner wall of the first cylinder body; or/and the filter rods are in a conical array structure.
9. The long-duration mud pulse while-drilling bottom pressure monitoring device according to claim 5, wherein the inner wall end of the lower part of the fourth barrel of the second circuit channel is provided with a counter bore, a cover plate is fixedly arranged in the outer side of the counter bore, the counter bore is communicated with the second circuit channel and the third circuit channel, and the upper circuit channel, the first protective sleeve inner cavity, the first circuit channel, the second circuit channel, the counter bore, the third circuit channel, the second protective sleeve inner cavity, the connecting cylinder inner cavity, the fourth circuit channel and the fifth circuit channel are sequentially communicated to form a circuit channel; or/and at least two sealing rings are arranged between the outer wall of the flow limiting ring bearing seat and the inner wall of the first cylinder body, a sealing ring is arranged between the flow limiting ring and the flow limiting ring bearing seat, a sealing ring is arranged between the flow limiting ring bearing seat and the first clamping groove, and a sealing ring is arranged between the supporting cylinder and the inner wall of the first cylinder body; or/and the filter rods are in a conical array structure.
10. The long-duration mud pulse while-drilling bottom pressure monitoring device according to claim 7, wherein the inner wall end of the lower part of the fourth barrel of the second circuit channel is provided with a counter bore, a cover plate is fixedly arranged in the outer side of the counter bore, the counter bore is communicated with the second circuit channel and the third circuit channel, and the upper circuit channel, the first protective sleeve inner cavity, the first circuit channel, the second circuit channel, the counter bore, the third circuit channel, the second protective sleeve inner cavity, the connecting cylinder inner cavity, the fourth circuit channel and the fifth circuit channel are sequentially communicated to form a circuit channel; or/and at least two sealing rings are arranged between the outer wall of the flow limiting ring bearing seat and the inner wall of the first cylinder body, a sealing ring is arranged between the flow limiting ring and the flow limiting ring bearing seat, a sealing ring is arranged between the flow limiting ring bearing seat and the first clamping groove, and a sealing ring is arranged between the supporting cylinder and the inner wall of the first cylinder body; or/and the filter rods are in a conical array structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811090070.5A CN109025974B (en) | 2018-09-18 | 2018-09-18 | Long duration mud pulse while drilling bottom pressure monitoring device |
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| CN201811090070.5A CN109025974B (en) | 2018-09-18 | 2018-09-18 | Long duration mud pulse while drilling bottom pressure monitoring device |
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| CN109025974B true CN109025974B (en) | 2024-02-02 |
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| CN111075437B (en) * | 2020-01-08 | 2023-10-20 | 中国石油天然气集团有限公司 | QDT type rotary valve pulser and use method thereof |
| CN112412436B (en) * | 2020-10-29 | 2021-07-23 | 中国石油大学(华东) | Underground parameter measurement monitoring system |
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Effective date of registration: 20201110 Address after: 100120 Beijing Xicheng District six laying Kang Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 834000 Drilling Engineering Research Institute, No. 98 Youyi Road, Karamay District, Karamay City, Xinjiang Uygur Autonomous Region Applicant before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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