Oil Resources of Ecuador
- V.F. Marsters
- Document ID
- Society of Petroleum Engineers
- Transactions of the AIME
- Publication Date
- December 1923
- Document Type
- Journal Paper
- 1,032 - 1,037
- 1923. Original copyright American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. Copyright has expired.
- 4.3.4 Scale, 1.6 Drilling Operations
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Seepages of oil in Ecuador have been known for many years. The localityfirst to receive attention, and still worked in a modest way, lies on the northshore of the Santa Elena peninsula, between La Puntilla and Salinas. Operationswere first conducted largely by local capital. Later, foreign companiesacquired large blocks of land, where they have done considerable drilling. Fordetails concerning present drilling activities in Ecuador, we are indebted toLeon Price, an American resident engineer of Ecuador. The information solicitedcame to the author through the office of the American Consulate, withpermission to use it.
The coastal plain bordering the Province of Tumbes, Peru, continues to thenortheast, but narrows on passing the Zarumilla River. From this pointnorthward it widens toward Santa Rosa. In fact, the pampas, as shown on theofficial Wolf map, correspond fairly well to the areal extent of the coastalplain as far as Guayaquil. This is shown in a general way on the accompanyingmap. The author understands that the Guayaquil embayment is bordered on allsides by the coastal plain, as recognized at Tumbes and farther southwest, andthat it can be followed without a break as far north as Palmar. This view issupported by the mapped area regarded by Mr. Price as favorable or possible oilterritory. Moreover the islands in the Gulf of Guayaquil are the samegeologically as the coastal edge, being composed of Tertiary sediments. Theauthor understands also that Tertiary formations occur north of Palmar.According to a report by Mr. Cardon, of Guayaquil, Tertiary sediments areexposed in the region of San Francisco and extend to and beyond Pta. Calera.There is also reason to believe that at least the lower part of the valley ofthe Santiago River is occupied by Tertiary sediments, which probably border thecoast line and extend into the River Mira basin, and into Colombia.
On the south coast there are many seepages, most of them near the inner edgeof the coastal plain, between Zarumilla and Santa Rosa and also between SantaRosa and Machala.
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