CN200944096Y

CN200944096Y - Raw oil dynamic paraffin remover evaluator

Info

Publication number: CN200944096Y
Application number: CN 200620051851
Authority: CN
Inventors: 张玉明
Original assignee: CHANGSHA TRIGLE TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: CHANGSHA TRIGLE TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2006-08-04
Filing date: 2006-08-04
Publication date: 2007-09-05
Anticipated expiration: 2016-08-04

Abstract

The utility model discloses a crude oil dynamic paraffin remover and inhibitor testing device. A paraffin deposit tube (14) is arranged moveably in a constant-temperature paraffin deposit chamber, one end of the paraffin deposit tube (14) is communicated with one end of a guide through tube (5) moveably and airtightly, and the other end of the paraffin deposit tube (14) is communicated with the outlet end of a circulation pump (12) moveably and airtightly. The other end of the guide through tube (5) is communicated with a constant-temperature sample chamber, and the inlet end of the circulation pump (12) is communicated with the constant-temperature sample chamber. The utility model finishes paraffin deposit through the temperature difference by heating the sample of the crude oil with constant temperature, repeatedly regulating the constant temperature and low temperature of the wax precipitation point to make paraffin deposit, then a temperature of the beginning of the wax precipitation point can be found. The utility model has the advantages of simply structure and reliable performance.

Description

The dynamic Wax removing agent of crude oil is estimated instrument

Technical field

The utility model relates to a kind of evaluation instrument, particularly relates to a kind of dynamic Wax removing agent evaluation of crude oil instrument that crude oil is dynamically carried out the paraffin depositing ratio analysis.

Background technology

Owing to contain wax in the crude oil, in oil exploitation and crude oil transmission process, the wax that contains in the crude oil can influence the crude oil transmission condition, since recover the oil and the conveying crude oil process in have the temperature difference, the wax of crude oil can be under crude oil well and/or in the gathering line wax deposition, cause the delivery diameter of petroleum pipeline to diminish, influence transport capacity, even cause line clogging, and make the oil pipeline paralysis, lose productive capacity.Therefore, find out wax deposition temperature spot in the crude oil, wax deposition situation under the crude oil well analyzed and the wax removal effect of Wax removing agent experimentized to estimate be of practical significance very much.

The utility model content

The technical problems to be solved in the utility model provides a kind of temperature difference of utilizing and carries out wax deposition, by to the crude oil sample heated at constant temperature, repeatedly the constant temperature cryogenic temperature of wax precipitation piont is set, make its wax deposition, thereby seek certain the dynamic Wax removing agent evaluation of crude oil instrument of the temperature of wax deposition point at the beginning.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: be provided with the wax deposition pipe in the indoor activity of constant temperature wax deposition, described wax deposition Guan Yiduan is communicated with conduction pipe one end movable sealing, the described wax deposition pipe other end is communicated with circulating-pump outlet end movable sealing, the described conduction pipe other end is communicated with the constant temperature sample chamber, and described pump entry end is communicated with described constant temperature sample chamber.

Described constant temperature sample chamber is for to be provided with the cyclic water jacket with circulating water intake and circulating water outlet at the sample chamber periphery wall, and described sample chamber is provided with stirring apparatus and charge door.

As a kind of improvement of the present utility model, described wax deposition pipe bottom is inserted on the wax deposition pipe base that is communicated with described circulating-pump outlet, on described constant temperature wax deposition chamber, be provided with the gland support, be provided with on the described gland support corresponding with described wax deposition pipe top, with described wax deposition pipe press the wax deposition pipe gland that is inserted on the described wax deposition pipe base and with the corresponding adjusting depression bar of described wax deposition pipe gland, described wax deposition pipe is communicated with described conduction pipe by described wax deposition pipe gland.

Described constant temperature wax deposition chamber is constant temperature water bath wax deposition chamber.

Adopt the dynamic Wax removing agent of crude oil of technique scheme to estimate instrument, with heating crude oil one-tenth liquid state and after removing mechanical impurity after filtration, join in the constant temperature sample chamber, certain temperature is set in the constant temperature sample chamber and adopts stirring apparatus to stir to keep crude oil to become liquid, utilize ebullator crude oil to be squeezed into the constant temperature wax deposition chamber that sets in advance uniform temperature and the wax deposition pipe is housed again, constant temperature wax deposition chamber utilizes single card microcomputer and thermostat probe control constant temperature, crude oil returns in the constant temperature sample chamber by conduction pipe after the wax deposition in the wax deposition pipe, is transported to the wax deposition pipe by ebullator again and carries out the low temperature wax deposition.Package unit utilizes the temperature difference to carry out wax deposition, by the temperature of constant temperature wax deposition chamber is set repeatedly, make its temperature low to crude oil can be in the wax deposition pipe wax deposition, thereby seek and determine certain temperature of wax deposition point at the beginning, thereby the wax deposition temperature of definite crude oil.

The utility model can be widely used in aspects such as oil exploitation, crude oil transmission and carry out the dynamic wax deposition test of simulated field condition, the main application of this instrument: but the defeated field condition (temperature) of 1 Simulation of Crude Oil collection is carried out the wax deposition experiment, determines crude oil transmission wax deposition temperature spot; 2, can carry out the experiment of Wax removing agent wax removal Evaluation on effect; But 3 Simulation of Crude Oil down-hole field conditions are carried out the analysis of wax deposition situation under the crude oil well.

In sum, the utility model utilizes the temperature difference to carry out wax deposition, by to the crude oil sample heated at constant temperature, repeatedly the constant temperature cryogenic temperature of wax precipitation piont is set, makes its wax deposition, thereby seeking certain temperature of wax deposition point at the beginning, is that the dynamic Wax removing agent of a kind of crude oil simple in structure, dependable performance is estimated instrument.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is wax deposition pipe and wax deposition pipe base and wax deposition pipe gland structure synoptic diagram.

Embodiment

Referring to Fig. 1 and Fig. 2, the body of wax deposition pipe 14 is in the constant temperature water bath wax deposition chamber 1, wax deposition pipe 14 bottoms are inserted on the wax deposition pipe base 13 and by wax deposition pipe base 13 and are communicated with ebullator 12 outlets, between wax deposition pipe 14 bottoms and wax deposition pipe base 13, be provided with first O-ring seal 16, on constant temperature water bath wax deposition chamber 1, be provided with gland support 2, on gland support 2, be provided with corresponding with wax deposition pipe 14 tops, wax deposition pipe 14 is pressed the wax deposition pipe gland 4 that is inserted on the wax deposition pipe base 13 and the adjusting depression bar 3 corresponding with wax deposition pipe gland 4, between wax deposition pipe gland 4 and wax deposition pipe 14 tops, be provided with second O-ring seal 15, wax deposition pipe 14 is communicated with conduction pipe 5 by wax deposition pipe gland 4, conduction pipe 5 other ends are communicated with

sample chamber

8,8 periphery walls are provided with the cyclic water jacket 7 with circulating water intake 11 and circulating water outlet 9 in the sample chamber, sample chamber 8 is provided with stirring apparatus 10 and charge door 6, and ebullator 12 inlet ends are communicated with sample chamber 8.

Referring to Fig. 1 and Fig. 2, wax deposition pipe 14 is inserted in the constant temperature water bath wax deposition chamber 1, constant temperature water bath wax deposition chamber 1 adopts the mode of chilled water to realize constant temperature, the cyclic water jacket 7 of sample chamber 8 is connected recirculated water by circulating water intake 11 and circulating water outlet 9, heat cycles water, sample chamber 8 utilizes the recirculated water thermostatic control, reach sample chamber 8 temperature constant, start ebullator 12, crude oil is in the sample chamber 8, ebullator 12, wax deposition pipe 14, circulation is carried between conduction pipe 5 and the sample chamber 8, because the temperature of constant temperature water bath wax deposition chamber 1 is lower than the temperature of sample chamber 8, wax deposition pipe 14 is inserted and is immersed in the constant temperature water bath wax deposition chamber 1, just the temperature of wax deposition pipe 14 is lower than the temperature of sample chamber 8, crude oil is in wax deposition pipe 14 low temperature wax deposition, by the temperature of constant temperature water bath wax deposition chamber 1 is set repeatedly, make its temperature low to crude oil can be in wax deposition pipe 14 wax deposition, thereby seek and determine certain temperature of wax deposition point at the beginning, thereby the wax deposition temperature of definite crude oil.

Referring to Fig. 2, when needing to take out wax deposition pipe 14, only need rotation to regulate depression bar 3 and unclamp wax deposition pipe gland 4, wax deposition pipe 14 is directly taken out; In the time of need putting into wax deposition pipe 14, only need wax deposition pipe 14 is directly inserted wax deposition pipe base 13, wax deposition pipe gland 4 is covered on wax deposition pipe 14 tops again, rotation adjusting depression bar 3 compresses wax deposition pipe gland 4 and gets final product, and is convenient and swift.

Water-bath heating, cooling temperature control are adopted in sample chamber 8, constant temperature water bath wax deposition chamber 1, and the temperature ascending, descending is easy to control, have avoided the crude oil sample coking in the sample chamber 8; Whole operation is simple.

The utility model can also adopt the two-way analytic system, promptly analyzes two samples simultaneously at every turn.

Claims

1, the dynamic Wax removing agent of a kind of crude oil is estimated instrument, it is characterized in that: be provided with wax deposition pipe (14) in the indoor activity of constant temperature wax deposition, described wax deposition pipe (14) one ends are communicated with conduction pipe (5) one end movable sealings, described wax deposition pipe (14) other end is communicated with ebullator (12) endpiece movable sealing, described conduction pipe (5) other end is communicated with the constant temperature sample chamber, and described ebullator (12) inlet end is communicated with described constant temperature sample chamber.

2, the dynamic Wax removing agent of crude oil according to claim 1 is estimated instrument, it is characterized in that: described constant temperature sample chamber is for (8) periphery wall is provided with the cyclic water jacket (7) of have circulating water intake (11) and circulating water outlet (9) in the sample chamber, and described sample chamber (8) are provided with stirring apparatus (10) and charge door (6).

3, the dynamic Wax removing agent of crude oil according to claim 1 and 2 is estimated instrument, it is characterized in that: described wax deposition pipe (14) bottom is inserted on the wax deposition pipe base (13) that is communicated with described ebullator (12) outlet, on described constant temperature wax deposition chamber, be provided with gland support (2), on described gland support (2), be provided with corresponding with described wax deposition pipe (14) top, described wax deposition pipe (14) is pressed the wax deposition pipe gland (4) be inserted on the described wax deposition pipe base (13) and the adjusting depression bar (3) corresponding with described wax deposition pipe gland (4), and described wax deposition pipe (14) is communicated with described conduction pipe (5) by described wax deposition pipe gland (4).

4, the dynamic Wax removing agent of crude oil according to claim 1 and 2 is estimated instrument, and it is characterized in that: described constant temperature wax deposition chamber is constant temperature water bath wax deposition chamber (1).

5, the dynamic Wax removing agent of crude oil according to claim 3 is estimated instrument, and it is characterized in that: described constant temperature wax deposition chamber is constant temperature water bath wax deposition chamber (1).