CAJ | 학술논문

为进一步改善腐植酸类产品在油包水乳化钻井液中的抗温能力、分散能力和降滤失能力,采用十八烷基三甲基氯化铵对腐植酸进行改性制备降滤失剂H-QA,用作低毒油包水乳化钻井液降滤失剂.探索了合成条件对降滤失剂性能的影响,按照石油天然气行业标准评价了其在低毒油包水乳化钻井液中的性能.结果表明,降滤失剂H-QA的最佳合成条件为:反应物的配比KHu(腐植酸钾):1831(十八烷基三甲基氯化铵)为3:1,反应体系pH=8.86,反应温度40℃,裂解反应时间4 h.降滤失剂H-QA在加量为4%时,常温中压滤失量从6.4 mL降到4.0 mL,150℃高温高压滤失量从8.6 mL降到6.8 mL,在油包水乳化钻井液中具有明显的降滤失效果.此降滤失剂对钻井液流变性影响较小,有较好的分散能力,具有一定的应用和研究价值.
위진일보개선부식산류산품재유포수유화찬정액중적항온능력、분산능력화강려실능력,채용십팔완기삼갑기록화안대부식산진행개성제비강려실제H-QA,용작저독유포수유화찬정액강려실제.탐색료합성조건대강려실제성능적영향,안조석유천연기행업표준평개료기재저독유포수유화찬정액중적성능.결과표명,강려실제H-QA적최가합성조건위:반응물적배비KHu(부식산갑):1831(십팔완기삼갑기록화안)위3:1,반응체계pH=8.86,반응온도40℃,렬해반응시간4 h.강려실제H-QA재가량위4%시,상온중압려실량종6.4 mL강도4.0 mL,150℃고온고압려실량종8.6 mL강도6.8 mL,재유포수유화찬정액중구유명현적강려실효과.차강려실제대찬정액류변성영향교소,유교호적분산능력,구유일정적응용화연구개치.
To?further?improve?temperature?resistance,?dispersion?ability?and?filtration?reduction?of?fluid?loss?additive?in?water-in-oil?emulsion?drilling?fluids,?fluid?loss?additive?H-QA?was?prepared?by?the?reaction?of?humic?acid?with?octadecyl?trimethyl?ammonium?chlo-ride,?to?use?in?low?toxicity?water-in-oil?emulsion?drilling?fluid.?The?influence?of?synthetic?conditions?on?the?fluid?loss?additive?properties?was?explored,?and?the?properties?of?fluid?loss?additive?in?low?toxicity?invert?oil-emulsion?drilling?fluid?were?evaluated?according?to?the?petroleum?and?national?gas?industry?standards.?The?results?of?optimal?synthetic?conditions?were?showed?as?follows:?the?ratio?of?potassium?humate to octadecyl trimethyl ammonium chloride (1?831)?is?3:1,?pH?of?the?reaction?system?8.86,?reaction?temperature?40℃, scission reaction?time?4h.?When?addition?of?H-QA?is?4%,?the?API?filtration?reduced?from?6.4 mL?to?4.0?mL,?the?HTHP?filtration?reduced?from?8.6?mL?to?6.8?mL.?It?shows?a?good?fluid?loss?control?effect?in?water-in-oil?emulsion?drilling?fluid.?No?influence?on?drilling?fluid?rheology?was?noticed?by?addition?of?the?fluid?loss?additive,?which?has?certain?application?and?research?value.